How to create a local git clone of a mercurial repo?

[Kastner Masilko, Friedrich]

> From: Harvey Chapman [mailto:hchapman-hg at 3gfp.com]
> 
> I’m not sure how to get the .hg/git folder to be populated without pushing to
> another repo. I tried creating an empty repo, committing to it, and using
> gexport. I also tried the git.intree=1 option, but I don’t think that works. My
> .hg/git and .git are empty. I didn’t know about the gexport/gimport usage
> pattern.

Well, I've just tried it here.
* I've cloned the .NET corefx repo from github via hggit. The .hg/git folder there was approx. 4.5MB thanks to already packed objects. Interestingly enough, the .hg/store folder - containing the equivalent hg history - was smaller with 4.2MB, so I guess the original git repo there is not optimally packed (yet).
* Then I made a local clone with hg, resulting in a pure-hg repository without a .hg/git folder.
* Then I did a "hg gexport" in that repo, and the result was a .hg/git folder, although without packs, just plain old blob objects. This results in a bigger size of ca. 12MB.
* Copying that .hg/git folder to /path/to/repo/.git, doing "git config core.bare false", followed by "git checkout master" works as expected.
* Doing "git gc --aggressive" also reduces the .git folder size to some reasonable 2.7MB.

I've used git 1.7.2.5 on Linux and TortoiseHg (includes hggit) 3.1.2 on Windows for this scenario. No pushing was involved, I've just copied the folder across. Creating a new repo, setting a master bookmark and then doing gexport works just the same.

Regards,
Fritz



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